Interlocking adjustable frame shoe



J. WAGNER. INTERLOCKING ADJUSTABLE FRAME SHOE. APP l FILED MAR\I8,192I.

1,435,270, Patented Nov. 14, 1922.

part of this Specification. l

I vided with integral interlocking means.

a sliding fit.

Patented Nov. 14, 1922,

U ftt 'Jorrn o. wasrinafor "tea. stares l rnrrennookriie- ADJUSTABLEFRAME snon.

Application filed March 12;, 192 1L-. "Seria1 1 'i0. asatea v Isameyreference, being bad to "the accom panying drawings, and tothenumeralsjof reference marked thereon, wh ch form] a This inventionrelates to an interlocking adjustable frame shoe, and particularlyto aspring impelled frame shoe which is adapted to be usedin connection withscreen frames or window frames'to automatically adjust the same for use,in.',winclows-'of varying widths.

Screens of the typeur der consideration I Y are mounted in jWlIlClQWframes to. sllde vertically on tongues provided for that purpose, andon, account .of'the variation in the distance between vthese tongues, itis necessary that the slidable screen or window frame be provided withmeans whereby it may be readily adjusted toafford a good This adjustment-is best provided by the use oftelescopic metal sections which arenormally heldin extended position by resilient means engagedtherebetween, and 511108 these telescopic sections may be easily forcedapart by pressure on the screen when they are in extended position it'is desirable that interlocking means, therefor be provided. It isalsodesirablethat means for preventing dirt and forbe. rovided interiorof eign matter from enteringthe the teles'copicsections. 1 a a It is anobject therefore of this inven- .tion to providea telescopicautomatically adjustable frame side wherein thetelescopic sections areinterlocked to prevent separ ation, i

It is another object of the invention provide an adjustable 'frame shoehaving dust excluding means associatedtherewith.

It is alsoman object of the present 1nvention to provide a frame shoewherein slin im elled telescoioicsections are lo- It is animportantobject of this invention to provide an automatically adjustableframe shoe which is provided with means vtion" on the line 7-7of'Figure"2,vwith parts screen frame; being poses ofillustration.

section 2 of the positions of adjustment,

CI-I I CAGO, ILLfI-Nbrsff to affordtrigidity thereto at the; extreme fOther and further important obiects this invention will be apparent fromthe;

disclosures in the draw'ingsand the speci- The invention (in' apreferred form is shown in the drawings and hereinafter more fullydescribed.- On the. drawings:

' Figure 1 1s a vlew in elevationof a'win' con dow frame equipped with ascreen employ- I ing the improved frameishoe of this vinvention. r a 1 sFigure 2 1s. a fragmentary top plan view of the frame shoe and-the frameto which it is attached.

Figure 311s slightly enlarged fragmen} i tarysectionon the lineB- 3ofFigure 2 1 Figuref l is a fragmentary enlarged detail elevation of theframe shoe attached toa screen frame.

Figure 5 is a slightly enlarged fragmen tary section on the line 5-75 ofFigureA; Figure'fG isa sectional lview similar to Figure 5, showing theframe shoe inextreme closed position. i

Figure 7 is an enlarged fragmentary sec- 7 in elevation. 1, As-shown.on] the drawings: The frame shoe of this invention is adapt ed to besecured to the'vertical side'l'of a suitable screen frame or windowframe, a

shown herein for pur In the preferred embodiment (it in ventionshown'herein said screen frame 1- is constructed of stamped imetal andsecured to said frame by brazing or other suitable means is astampedmetal channel parallel to thewalls of' the channel section,

and engaged betweensaid extensions 3 and frame shoe. Said channelsection 2 isprovl ded with; inwardlydirected integral extensions 3 whichare substantially the-inside of thewalls of a channel section.

2 are outward extensions f whichiare jintegral witha channel sectlon 5wh1ch is lat-'- erallv slidable in the channehsection'; 2;

Said channel sectionlois formed inwardly I along "itsouter edge 6) toafford" afgroove 'which'sli'dably engages a suitable tongue so thatthescreen or window may be vertically moved in 'the frame in whichisfmounted.

